# Copyright (C) 2012-2015 Free Software Foundation, Inc.
#
# This file is part of GCC.
#
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# This is a target makefile fragment that attempts to get
# multilibs built for the range of CPU's, FPU's and ABI's that
# are relevant for the A-profile architecture.  It should
# not be used in conjunction with another make file fragment and
# assumes --with-arch, --with-cpu, --with-fpu, --with-float, --with-mode
# have their default values during the configure step.  We enforce
# this during the top-level configury.

MULTILIB_OPTIONS     =
MULTILIB_DIRNAMES    =
MULTILIB_EXCEPTIONS  =
MULTILIB_MATCHES     =
MULTILIB_REUSE	     =

# We have the following hierachy:
#   ISA: A32 (.) or T32 (thumb)
#   Architecture: ARMv7-A (v7-a), ARMv7VE (v7ve), or ARMv8-A (v8-a).
#   FPU: VFPv3-D16 (fpv3), NEONv1 (simdv1), VFPv4-D16 (fpv4),
#        NEON-VFPV4 (simdvfpv4), NEON for ARMv8 (simdv8), or None (.).
#   Float-abi: Soft (.), softfp (softfp), or hard (hardfp).

MULTILIB_OPTIONS       += mthumb
MULTILIB_DIRNAMES      += thumb

MULTILIB_OPTIONS       += march=armv7-a/march=armv7ve/march=armv8-a
MULTILIB_DIRNAMES      += v7-a v7ve v8-a

MULTILIB_OPTIONS       += mfpu=vfpv3-d16/mfpu=neon/mfpu=vfpv4-d16/mfpu=neon-vfpv4/mfpu=neon-fp-armv8
MULTILIB_DIRNAMES      += fpv3 simdv1 fpv4 simdvfpv4 simdv8

MULTILIB_OPTIONS       += mfloat-abi=softfp/mfloat-abi=hard
MULTILIB_DIRNAMES      += softfp hard

# We don't build no-float libraries with an FPU.
MULTILIB_EXCEPTIONS    += *mfpu=vfpv3-d16
MULTILIB_EXCEPTIONS    += *mfpu=neon
MULTILIB_EXCEPTIONS    += *mfpu=vfpv4-d16
MULTILIB_EXCEPTIONS    += *mfpu=neon-vfpv4
MULTILIB_EXCEPTIONS    += *mfpu=neon-fp-armv8

# We don't build libraries requiring an FPU at the CPU/Arch/ISA level.
MULTILIB_EXCEPTIONS    += mfloat-abi=*
MULTILIB_EXCEPTIONS    += mfpu=*
MULTILIB_EXCEPTIONS    += mthumb/mfloat-abi=*
MULTILIB_EXCEPTIONS    += mthumb/mfpu=*
MULTILIB_EXCEPTIONS    += *march=armv7-a/mfloat-abi=*
MULTILIB_EXCEPTIONS    += *march=armv7ve/mfloat-abi=*
MULTILIB_EXCEPTIONS    += *march=armv8-a/mfloat-abi=*

# Ensure the correct FPU variants apply to the correct base architectures.
MULTILIB_EXCEPTIONS    += *march=armv7ve/*mfpu=vfpv3-d16*
MULTILIB_EXCEPTIONS    += *march=armv7ve/*mfpu=neon/*
MULTILIB_EXCEPTIONS    += *march=armv8-a/*mfpu=vfpv3-d16*
MULTILIB_EXCEPTIONS    += *march=armv8-a/*mfpu=neon/*
MULTILIB_EXCEPTIONS    += *march=armv7-a/*mfpu=vfpv4-d16*
MULTILIB_EXCEPTIONS    += *march=armv7-a/*mfpu=neon-vfpv4*
MULTILIB_EXCEPTIONS    += *march=armv8-a/*mfpu=vfpv4-d16*
MULTILIB_EXCEPTIONS    += *march=armv8-a/*mfpu=neon-vfpv4*
MULTILIB_EXCEPTIONS    += *march=armv7-a/*mfpu=neon-fp-armv8*
MULTILIB_EXCEPTIONS    += *march=armv7ve/*mfpu=neon-fp-armv8*

# CPU Matches
MULTILIB_MATCHES       += march?armv7-a=mcpu?cortex-a8
MULTILIB_MATCHES       += march?armv7-a=mcpu?cortex-a9
MULTILIB_MATCHES       += march?armv7-a=mcpu?cortex-a5
MULTILIB_MATCHES       += march?armv7ve=mcpu?cortex-a15
MULTILIB_MATCHES       += march?armv7ve=mcpu?cortex-a12
MULTILIB_MATCHES       += march?armv7ve=mcpu?cortex-a17
MULTILIB_MATCHES       += march?armv7ve=mcpu?cortex-a15.cortex-a7
MULTILIB_MATCHES       += march?armv7ve=mcpu?cortex-a17.cortex-a7
MULTILIB_MATCHES       += march?armv8-a=mcpu?cortex-a53
MULTILIB_MATCHES       += march?armv8-a=mcpu?cortex-a57
MULTILIB_MATCHES       += march?armv8-a=mcpu?cortex-a57.cortex-a53
MULTILIB_MATCHES       += march?armv8-a=mcpu?cortex-a72
MULTILIB_MATCHES       += march?armv8-a=mcpu?cortex-a72.cortex-a53

# Arch Matches
MULTILIB_MATCHES       += march?armv8-a=march?armv8-a+crc

# FPU matches
MULTILIB_MATCHES       += mfpu?vfpv3-d16=mfpu?vfpv3
MULTILIB_MATCHES       += mfpu?vfpv3-d16=mfpu?vfpv3-fp16
MULTILIB_MATCHES       += mfpu?vfpv3-d16=mfpu?vfpv3-fp16-d16
MULTILIB_MATCHES       += mfpu?vfpv4-d16=mfpu?vfpv4
MULTILIB_MATCHES       += mfpu?neon-fp-armv8=mfpu?crypto-neon-fp-armv8


# Map all requests for vfpv3 with a later CPU to vfpv3-d16 v7-a.
# So if new CPUs are added above at the newer architecture levels,
# do something to map them below here.
# We take the approach of mapping down to v7-a regardless of what
# the fp option is if the integer architecture brings things down.
# This applies to any similar combination at the v7ve and v8-a arch
# levels.

MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7ve/mfpu.vfpv3-d16/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7ve/mfpu.vfpv3-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv8-a/mfpu.vfpv3-d16/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv8-a/mfpu.vfpv3-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7-a/mfpu.vfpv4-d16/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7-a/mfpu.vfpv4-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7-a/mfpu.fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7-a/mfpu.fp-armv8/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=march.armv7-a/mfpu.vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=march.armv7-a/mfpu.vfpv4/mfloat-abi.softfp


MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.hard=march.armv7ve/mfpu.neon/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.softfp=march.armv7ve/mfpu.neon/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.hard=march.armv8-a/mfpu.neon/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.softfp=march.armv8-a/mfpu.neon/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.hard=march.armv7-a/mfpu.neon-vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.softfp=march.armv7-a/mfpu.neon-vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.hard=march.armv7-a/mfpu.neon-fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7-a/mfpu.neon/mfloat-abi.softfp=march.armv7-a/mfpu.neon-fp-armv8/mfloat-abi.softfp


MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=march.armv7ve/mfpu.fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=march.armv7ve/mfpu.fp-armv8/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=march.armv8-a/mfpu.vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=march.armv8-a/mfpu.vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=march.armv8-a/mfpu.vfpv4-d16/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=march.armv8-a/mfpu.vfpv4-d16/mfloat-abi.softfp


MULTILIB_REUSE	      += march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.hard=march.armv8-a/mfpu.neon-vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.softfp=march.armv8-a/mfpu.neon-vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.hard=march.armv7ve/mfpu.neon-fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.softfp=march.armv7ve/mfpu.neon-fp-armv8/mfloat-abi.softfp



# And again for mthumb.

MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv7ve/mfpu.vfpv3-d16/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv7ve/mfpu.vfpv3-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv8-a/mfpu.vfpv3-d16/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv8-a/mfpu.vfpv3-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv7-a/mfpu.vfpv4-d16/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv7-a/mfpu.vfpv4-d16/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv7-a/mfpu.fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv7-a/mfpu.fp-armv8/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.hard=mthumb/march.armv7-a/mfpu.vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.vfpv3-d16/mfloat-abi.softfp=mthumb/march.armv7-a/mfpu.vfpv4/mfloat-abi.softfp


MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.hard=mthumb/march.armv7ve/mfpu.neon/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.softfp=mthumb/march.armv7ve/mfpu.neon/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.hard=mthumb/march.armv8-a/mfpu.neon/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.softfp=mthumb/march.armv8-a/mfpu.neon/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.hard=mthumb/march.armv7-a/mfpu.neon-vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.softfp=mthumb/march.armv7-a/mfpu.neon-vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.hard=mthumb/march.armv7-a/mfpu.neon-fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7-a/mfpu.neon/mfloat-abi.softfp=mthumb/march.armv7-a/mfpu.neon-fp-armv8/mfloat-abi.softfp


MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=mthumb/march.armv7ve/mfpu.fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=mthumb/march.armv7ve/mfpu.fp-armv8/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=mthumb/march.armv8-a/mfpu.vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=mthumb/march.armv8-a/mfpu.vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.hard=mthumb/march.armv8-a/mfpu.vfpv4-d16/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.vfpv4-d16/mfloat-abi.softfp=mthumb/march.armv8-a/mfpu.vfpv4-d16/mfloat-abi.softfp


MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.hard=mthumb/march.armv8-a/mfpu.neon-vfpv4/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.softfp=mthumb/march.armv8-a/mfpu.neon-vfpv4/mfloat-abi.softfp
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.hard=mthumb/march.armv7ve/mfpu.neon-fp-armv8/mfloat-abi.hard
MULTILIB_REUSE	      += mthumb/march.armv7ve/mfpu.neon-vfpv4/mfloat-abi.softfp=mthumb/march.armv7ve/mfpu.neon-fp-armv8/mfloat-abi.softfp
